I am new to ebay but I have a business and I have thousands of items to sell...if I open a store will I have selling limits?

No, a store does not lift the limits.  So you would be paying the monthly fee (approx. $15) for nothing.  With that many items, a store would be a good option in the future, but not yet.

The limits are based on what ebay want your account to be. If you sell only a small amount of items and you get a lower rating it will take forever to remove. Since the start of this new terms, I have been limited only because I charge exactly what USPS charges and the buyer didn't want to pay for shipping. Thus since June 2012 my shipping is free, but I am still limited do to the ratings that never change for the few items i have sold. Is this to benefit the seller or just for ebay to show that can monopolize the site to their socialistic class of doing things. It use to be fun selling here, but now its just a scam 

"Is this to benefit the seller or just for ebay to show that can monopolize the site to their socialistic class of doing things?"

The only real benefits to the seller is that it attracts buyers & it gives you an automatic 5 star rating in S&H charges.  Your DSR in S&H is pretty low.  Offering the free shipping will bring that up, but it will take time.  Once that's up, you should be back to normal.  It's a pain & alot of people have complaints about Ebay, but I continue to believe that I would not be able to do this without Ebay, so I adjust. 

Don't know if you know this or already have it set up, but if you offer 1 day handling (& ship within 1 day) & a 14 day return policy, you will get an automatic 5 stars in the S&H time.  Since Ebay's Buyer Protection makes you take back almost everything, you might as well have a return policy.  Then if there is NO communication between you & the buyer, you get an automatic 5 stars in communication.  So there are ways around the DSR's & you just have to adjust.

As far as them monopolizing the site to their way of doing things....it's their ballpark.  Sellers can play ball or take their ball & go home. 

You might want to try this and look for the answer you seek.

 Go to the community tab at top of page and then go to answer tab when you get to answers type question in search bar and see if it has been answered. This helps me a lot when I have a hard time finding something that I need answered.